Wire-drawing machine



Nov. 23V., 1926.

' 4J.N.SEI;\HG `w1RE DRAWING MACHINE Filed July 12,".192'4 '2 sheets-shed 1' IAN 7 'Inventor' John Jazz] @Y Nov. 23 1926.'

WIRE DRAWING MACHINE Filed July 12 192.4 j zsnets-shqet 2 1 l Innen/i014 JOMNJQZU@ Patented Nov. 2li, 19276.

UNITED- STATES PATENT OFFICE.

JOHN NILsEN sELvIe, 'or CHICAGO, ILLIN'ors, AssIGNoR To WESTERN ELECTRIC- COMPANY, INCORPORATED; or NEW YORK, N. Y., A CoRronA'rIoN or NEW YORK.

WIRE-DBAWIKG MACHINE.

application ined, July 12, 1924. serial No. 725,660.

This invention 'relates to improvements inzontal sectional view taken on the line 7-7 wire drawing machines.

An object of the invention is to controlthe supply of lubricant to the die and drawing element of a wire drawing machine -by the wire being drawn.

In accordance with one feature of the invention a wire drawing machine is provided with a capstan for drawing a wire through reducing dies which capstan may. be connected to and disconnected from a driving mechanism by `a clutch, the dies being mounted in a hollow die .block arranged above the capstan. Lubricant is suppliedto the' interior of the die `blockV for lubricating the dies, in such quantity that it drains onto the capstan for lubricating it, a valve being provided for controlling the lubricant supply, the clutch and valve being so connected 'that'the capstan is disconnected from the driving mechanism and the valve closed to discontinue the supply -of lubricant to the die in the event that the Wire breaks during the drawing operation.

Other features and advantages of the invention will be set forth in the following description and particularly pointed out in the appended claims.

The accompanying drawings illustrate` one embodiment of theinvention, in which- Fig. 1 is a front elevation, parts-being broken away, showing a wire drawin machine embodying the yfeatures of the lnventionl Fig. 2 is an enlarged fragmentary side elevation, partly in section, showing the mechanism for simultaneously starting the capstan and opening the valve through which lubricant is supplied to the die block and also for simultaneously stopping the vcapstan and closing the valve to discontinue the supply of lubricant to the die block in the event that the Wire breaks;

Fig. 3 is an enlarged detail View showing the connection between the rod for operatlng the capstan clutch and the "levers for opening and closing the lubricant supply valve;

Fig. 4 is a fragmentary sectional view taken on the line 4-4 of Fig. v.2 showing a front elevation of some of the valve parts; Figs. 5 and 6 are enlarged fragmentary detail views in vertical section, parts being shown in elevation, of a portion of the lever mechanism for operating` the capstan clutch; Fig. 7 is an enlarged fragmentary horle of Fig.. 5; f

Fig. 8 is an enlarged fragmentary dissembled perspective View showing in detail a portion of the mechanism illustrated in Fig. 5, and l Fig. 9 is an enlarged'fragmentary front view of. a portion of the leverage mechanism shown in Fig. 1. Referring now to the drawings in detail i-n which ylike reference numerals designate similar parts throughout the several views,

11 represents 'a framework which supports l a compartment 12 of substantially rectangular shape having top, bottom, backand slde .walls 13, 14, 15, and 16 respectivelyjThe inafter described; Mounted above the shaft 18 4vare a plurality of. sheaves 19 independently rotatable upon a horizontally disposedl shaft 20 suitably supported within the compartment'12. -Mounted between the sheavesv 1.9 and capstans 17-17 is a die block 21 carried by a bracket 22 secured to the back wall of the said com artment. For a detailed illustration and escription of the sheaves 19 and the driving mechanism forV the capstan shaft v18 reference is made to applicant s co-l pending application, Serial No. 541,633, filed March 7, 1922. The details of this construction have been omitted from'the present application for the sake of simplicity, since afull description of the sheaves and driving mechanism for the cap'stan shaft'18` is not essential to a complete understanding of the present invention.

The clutch mechanism for coupling the capstans 17-17 toand disconnectmg'them from the driving shaft 18 isshown in F ig. 2, the clutch being illustrated in its operated position. The shaft 18 is in the I:form of a sleeve which projects through a `horizontally and centrally disposed opening made through the c apstans 17-17. This sleeve .carries adjacent itsv outer end an annular member astthereto which has secured towall of a cupshaped opening 75 made in the capstans 17.17. 'llhe disks 72 and'73 are movable longitudinally on the pins 71 and 7 l respectively, and when pressure is exerted. to :torce the disks together they form a driving connection between the eapstans 17--17 andthe sleeve 18, as is readily understood. lhe meansv for forcing the disks 72 and `73 together comprisesa plate 76 which vengages the outermost disk, and when the said plate is movedjtoward the right, into the posi tion shown serves to torce the disks together sufficiently to cause themto rotate as a unit. 'lhe plate 76 is fastened to one end of a shaft l 77 mounted within the sleeve 18. A transf verse pin 79 is secured in the shaft 77 and .projects through diametrically opposite longitudinal slots 80 cut in the sleeve 18 and engages an annular channel formed inthe interior wall of a housing 78 so as to be movable longitudinally therewith but free to rotate independentlyl of the said housing. rllhrough the medium of the pin 7 9 `and slots 80, the shaft77 and housing 78 are movable together longitudinally oi' the sleeve 18` Means not shown) is provided for preventing the ousing from turning but permitting it to move longitudinally of the sleeve 18. Secured to the .sides of the housing 78 at diametrically opposite points are pins 81 which receive the bifurcated ends or' a forked member 82 which is pivoted at 83 along with a link 84. .The link 8l has secured to its free end a pin 85 which its within a slot lill1 formed in the upper end` oit a vertically re` ciprocablerod 86. A

For a more detailedl illustration and description of the clutch mechanism per se reference is made to the copending application of "W. F. Hosford, Serial No. 566,206, filed June 6, 1922. i

-When it is desired to revolve thecapstans 17-17 the rod 86 is moved downwardly, as

viewed in Fig. 2, by meansvof .a toot treadle, handle, or other suitable means (not shown).

As 'the rod 86 moves downwardthe housing 78 is moved to the right longitudinally of the shaft 18 through the mediumof the link4 811 and forked member'82 into the position shown. in Fig. 2. The housing 7 8 carries with it, the shaft 77, through the medium ofpin 79, causing' the plate 76 carried by the shaft to exert; sufiicient pressure on the disks 72 and 73vto cause them to form a driving connection between the sleeve 18 and capstans 17. When the means tor lowering the rod 86 is released, the said4 rod is restored to its initial position and the housing 78and shaft 77 movedtoward the left, as viewed in Fig. 2, by means of energy stored in aeompression spring 87 which has one oit its ends in engagement with the shaft 77 and its other end against a plug 88 screwedl within the `end of the sleeve 18. 'lhe housing 78 in -movingv toward the left, 'as above described, engages a brake member 89' carried Athereby against an annu,

lar member 90 secured tothe capstan and serves tostop the rotationlthereoi'.

Referring now to the lubricating system, the die block 21 comprises a hollow, horizontally disposed body portion 23 having se.

Cured theretoV shelves '24 and 25, each of which is adapted to support a series of dies thereon (not shown). One end ofthe body portion 23 is provided, with 'an opening 27` 30 and suitably supported is a pipe 32 con Y nected by an elbow 33 ,with a verticallydisposed pipe 311 Fig. l) which is .connected to the outlet port oir' a pump 35. 'llhe intake port of the pump has connected thereto a` pipe 36 which is suitably supported lwithin an opening 37 formed in the bottom wall 110 of the compartment 12..` Disposed above the bottom wall 4.0 and parallel therewith is a screen 38, the purpose of'which willv be hereinafter described.

When the capstans 17 are set in motion` by lowering the rod 86, asp'rcviously described, the valve 30 1s simultaneously opened by means of an arm 39 which is turnedl counter clockwise about its pivot 91 and through a second ,arm 41 movable there with and engaging the end of the valve stem the valve 30 is moved oil of its seat. arm 39 is given the movement just described by means ot a plunger 92- reciprocably mounted within a bearing. 93 carried by the back well 13 of the compartment 12, lone end of the said rod` being in engagement with the arm 39 and its other end having a pin i and slot connection with a bell-'crank lever 94 pivoted at 95 to a' bracket 96 suitably supported by the framework ot' the machine.- Fivoted tothe bell-crank lever 94 is one end ot a link 97, the lower end or which is pivoted at 98 toenl arm 99 pivotally mounted upon a stud 100 carried by theframework oi' the machine The arm 99 is provided with a projection 101 which fits within u recess 102 formed in the rod 86 (Fig. 3)A so that thelink 97 moves in a reverse direc' vtion as compared with the rod 86.

The pump 35 serves to draw lubricant placed in the compartment 12 and lift it into the interior of the body portion 23 ot' the die block, from which it is forced on top of the dies supported on4 the shelves Qlund -trolling the supply-of lubricant to the die block, the wire drawing apparatus 1s only through a series'of openings 26 formed in each of the shelves 24 and 25. For a detailed description and ,disclosure of the construction of the die block reference is made to the copending application of F. S. Koclieudorfer, Serial No.A 566,285, iledfJune 6,

1922. The lubricant is supplied to the dies in such quantities that' it. overflows the fnection between the clutch for stopping and start-ing tlie'capstan andthe valve for con-l lubricated during'such times as itis in operation, and wheneverthe capstan is stopped which maybe. caused by the operator disengaging the clutch or by the breakage of the wire during the drawing operation the lubricant is cut oli'. The mechanism for caut-v ing the clutch to be operated upon breakage of the Wire will be hereinafter described. 'Since'the flow of lubricant is controlled automatically by the stopping and starting 'of the capstan, whenever 'the ca pstan is in operation suiiicient lubricant is lnsured, the

' supply -of which is-not dependent uponthe discretion of thev operator, and when the -capstan is idleno lubricant is supplied to the dieser capstan, which might interfere With the adjustment of the apparatus or Stringing of the machine,

A supply (if wire to be reduced in diameter is carried by a supply spool `5() suitably mounted at the front of the machine. The Wire is guided .from the supply spool over and under pulleys I51 and 52 respectively' (Fig. 1) and then over therear sheave 19 and through.' the first reducing die (not shown) cargrlied by the die shelf 24. The4 wire is then wound .once around the capstan 17 of smallest diameter, after which it is psed upward and over the next sheave 19 and through the next reducing die carried by the die slielf'25. The Wire is then wound around the next capstan and then again over the next shea've 19 and through the next .reducing die,l ctc.; until it is I-finally drawn down to the desired diameter by the last reducing die'. From the final` reducing die the' drawn wire passes around the capstan 17 of largest diametcriand is guided. by a pulley 57 rotatably mounted on ai stationary arm 58 adjustably positioned on the `shaft 20 to a pulley 59 carried by a lever 60;k From the pulley 59 the wire is led to a take-up spool 61 (dotted outline Fig. 1), driven by suitable mechanism (not shown). For a dctailcilk illustration and descri tion of. the mountl ing for the spool 61. re erence is made to ap'- plicants coending application, Serial No. 7 8,814, filed anuary 2, 1926. A

As previously stated', the clutch mecha' mism/shown in Fig. 2 is illustrated in'its operated position in which the capstans 17-17 are connected with the sleeve 18. When it is desired to release the clutch mechanism and stop the operation of the capstans 1ST-17, a knob 125 is moved to the left, as viewed. in Fig. 6. mounted on the projecting end ofa rod 126 by a pin 127 fastened to the knob which fits within a longitudinal slot 128 cut in the rod. Due to this connection the knob 125.1nay move a limited distance on the rod without causing any movement of the lat-` ter. The rod 126 is reciprocably mounted Within a bracket 129 fastened to fthevfront wall of the compartment 12. When the capvstan is operating, the rod 126 is held in the position shown in Fig.- 6' by means oa spring pressed pawl 130 which engages a notchA cut in the rod. When the knob 125 is `moved tothe-left to stop the operation ofthe capstan, `as above described, a shoulderl 131 formed .on .the knob engages a projection 132 integral with the pawl 130 causing the said pawl to be rotated counter-clock Wise and free the rod 126 which is moved toward the left byia compression spring 153 (Fig. 5) to be hereinaftermore fully described. Pivoted to the rod 126 at a point 133 is alever 134 which is pivoted at one end to the bracket 129 and at its other end to one end of'a link 135', the other end of the link 135 being pivoted to a-bellcrank lever 136 pivotally mounted upon a bracket This knob is asY 137 secured to a portion of the 'framework y of the machine.v The bell-crank lever 136 is also pivoted to one end of a link 138', thev other end of which is connected to the laterally extending arm`139 of a bell-crank lever 140. Thislever is pivoted on a stud shaft tened vto a Aportion of the framework 11.A I

The other arm 143 ot the bellcrank lever is bifurcated to stra'ddle one end of a rod 144 4-to which it is pivotally connected by means of 'astud 145. The rod 144 is reciprocably mounted witl-iin the bracket 142 and is prevented from turning by means ofa --pin 146 carried bythe said bracket which tits within a longitudinal slotI` 147 cut in the rsaid rod. The inner end of the rod 144 has a tongue portion 148and a lug 149 on either side" thereof' as shown in Figs. Zand 8. When tlie'capstan is operating, the end'of the rod 144 tits within a longitudinal slot 150, cut in a block 151.l in va position in which the lugs 149.rest beneath lugs 152 which narrow the front portion-of the slot.A to a width which is only sufiicient to receivel bears at one end against a shoulder formed on the rod 14e and at its other end against a plug 154. rlhe rod 144 is moved a sufficient distance to carry the lugs 1&9 from beneath the lugs 152 and permit the block 151I to freely slide on the tongue 148. 'Die block 151 is circular in cross section and isl reciprocably mounted within an opening formed-in a projecting portion 155 carried bythe framework of the machine. When the block 151 is freed by the rod lekt, it is moved downwardly, as viewed in Fig. 5, by means of energy stored in a compression spring-.156 which bears at one end against other end of said spring engaging the bottom of" a cupeshap'ed. opening 160'formed in the block 151. ln moving downwardly the block 151 engages the upper edgeA of` a enlarged portion of the rod 159 projects and y vertically disposedv casing 161 into which an to which the. said rod is attached byineans of a pin 162I carried by the casing which is movable within a longitudinal-slot 163 cut in the rod 159i. 'llhe tension of the spring 156 is sufiicient to couple the block 151 to the casing 161 and rod 159 so that these three parts move together as aunit during the downward movement of the.

block. The casing 161 at itslower end is suitably. pivoted to a' foot pedal (not shown). Threaded on the upper end of the -rod 159 are nuts 165 and166 which clamp between them a block 167 carrying `at dia metrically opposite points pivot pins 168 'l upon which the bifurcated ends'of the lever 164 are pivoted. The lever 1611 is pivotally mounted as indicated at 202 upo-n a bracket 203 (Fig. 2) carried by-the framework 11, and is suitably connected by a link 20st` with therod 86 which as heretofore describedcontrols by its movement the engagement andy disengagement 'of the capstan clutch and simultaneously the opening' and closing of the' valve 80 controlling the supply of lubricant to the die block 21. After the block 151 has been coupled-to the casing 161 and rod 159 through the medium of the spring V156, as previously described, these three elements are movedA downwardly, a distance limited bythe engagement o1 the brake member 89 with the annular member 90 carried by the capstan which movey ment will be described presently, the lever 164C being rocked clockwise about its pivot,

- 202 by an upward movement of the rod 86.

moana@ casing 78, by the rod 77 which is moved to# wardthe left, as viewed in Fig. 2, by means of energy stored in thecompression spring 87 which is, released by the actuation of the knob 125 as herenbefore described. The spring 87 has one of its ends in'engagement with the said shaft and its other end aga-inst the plug 88 screwed into the' end of the i.

longerl couple the capstans 174-17 'tothe sleeve 18.- 'llhe v housing 78 is limited in its movement toward the lett, as hereinbefore described, by

the engagementlot' the brake member 89 carried thereby withtherannular member 90 rotatable with ythe capstans 17H17, the braking surfaceserviiigl` to stopthe rotation of the capstans'after the clutch mechanism a collar 157, which is 1n engagement with4 lock nuts 158 threaded on a` rod 159, the

Adistance limited by the pin 162 and slot 163 the upward movement of the casing 161 is` transmitted to the rod 159, the continued upward movement of which rocks the lever 164- clockwise as viewed in- Fig.'.2 about its pivot. This movement of the link 164e draws the rod 86 downwardly (Figs.` 2 and) which through the medium ofthe link v84,

`fork member 82, and housing 78 moves the rod 77 to theY right, as viewed in Fig. 2, againstthe spring 87. For a detailed illustration .and description of the. operative connection between the foot treadle and rod 86, reference is made to applicantscepending application, Serial No.-566,385, filed.

June 6,' 1922. The complete details of this connection have been omitted from the present application for thesake of simplicity and since they are not essential to a complete understandingot' thisinvention.` .As the casing 78 and rod'77 are moved toward the right., the brake memberv 8 9 carried by the housingV 78 moves out of engagement' with the annularmember 90, thereby freeing the capitan, 4thefurther movement of the rod 77 causing the plate 76- carried thereby to force the clutch disks 72" and 7 3 into.

engagement with each other so that they form a driving connection between thecap- Stans A17-17 and the sleeve 18. Simultaneously the valve which controlsvv the supply of-lubricant to the die and drawing elements is opened bythe arm 39 beingturned counter-clockwise about its pivot 91- through the mechanism heretofore described.- As the rod 159 is moved upwardly to operate the clutch mechanism,- as above described,

\ the operator pulls outwardly -on the -knob tow-ard the left, as viewedin Figs. 6 and 7 moved position.

until the said lugs rest 'beneath the proje`c tions 152 formed. in the slot.

144 is in this position it supports the block 151 in'its upwardly moved position, and the block in turn through the medium of the spring 156, which is nstronger than the spring 87, holds the rod 15S) in its upwardly The rod 159 through the lever system heretofore described, retains the housing`78 and shaft 77 in such position that the plate 76 locks the clutch disks 72 and 73 together. The rod 144 is retained in its locking position through the system of .i

levers connecting it with the rod126, the latter rod being locked in its outwardly moved position by means of the spring pressed pawl 180.

After the clutch mechanismhas been actuated through the foot pedal (not show-n) to connect the eapstan with the driving mechanism and the saidfc-lutch has been locked through the actuation of the knob125, the footfpedalmay be released, which is returned to its initial elevated position by the weight of the casing'f161y which moves down- Wardly a distance limited by the pin 162 and slot 163.

Vhen the rodlFor a more detailed `illustration and de-' seription of vthe mechanism for driving the take-up spool 61 at varying speedsto compensate for the varying diameters thereof as wire is stored on the Spool, which mechanism includes a. friction clutch the driving .action of which is controlled by the tension .'of the drawn wire, reference is made' to applicants copending application, Serial No. 566,385, iled June 6, 1922. lFor `a detailed disclosure and description of the mode of operation of the leverage mech'anisr'l' 200 to vary the speed of the take-up. s,pool"61 re sponsive to the tension on thedrawn lwire betweenA the take-up spool andlastreducing die, reference is made to my copend'ing application, Serial No.. 541,633, filed March-7, 1922, since this mechanism is identical with that disclosed"in my application above re` ferred to.

As is described in my' said application, Se

- rial No. 541,633, when the tension :on the drawn wire is decreased below the-propertension, the leverage mechanism 200fisa ctu ated to` increase the speed of the take-up spool, and in this operation va link 201, which is one element of the said vleverage mechanism, is moved downwardly. lVhen the tension on the drawn wire is increased above the proper tension, the said link is moved upwardly. In the event that the wire breaks, the link 201 is caused to move downwardly a distance sufficient to move a plate 112 carried by the link into engagement with a collar 120 and cause a downward movement thereof. The collar 120 is.

carried by arod 121 the upper end of which is pivoted at 122 (Fig. 6) to an arm 123 fast I This movement of the shaft 124 disengages the pawl 130 so that the rod 126is free to move inwardly to disengage the clutch mechd anism within the capstan in the same manner that the said rod 126 is freed by disengagiug the pawl 130 through an actuation of the knob 125,`which operation has been previously described. i

From the-above it will'be understood that the link 201 which is actuated responsive'to the tension of the drawn wire to operate the mechanism for' varying the speed of the takeup spool, also in the event that the strand breaks, actuates means for tripping'the pawl 180 whichreleases the mechanism for disengaging the clutch mechanism mounted within the capstan to stop the operation thereof and as described before, simultaneously causes the valve 30 controlling the supply of lubricant to the die block 21 to be closed.

What isvclaimed is: 1 1.- In a wire drawing machine, adie block,

a die carried thereby, an element ffor drawing wire through the die, means for supply# ing lubricant to the die, and mechanism responsive t0 the tension of the wire for con trolling the supply of lubricant to the die.

2. Ina wire drawing machine, a die block, a die Icarried thereby, a drawing element, driving meanstherefor, means for supp1ying lubricant to the die carried by the dicblo'ck, controlling means-therefor, and mech--` anism operated automatically in the event that the wire breaks for operating the ,lubri-- ca nt controlling means to discontinue the supply of lubricant to the die. p 3. In a wire drawing machine, a die block,

a die carried 'therebv,va drawing eleinent, i

" element 4from the driving meansand for op-v trolling means for operatively disconnecting the drawing element from the driving means and to discontinue the supply of lub- .ricant to the die in the event that the wire breaks.

5. In a wire drawing machine, a die block, a die 'carried thereby, a drawing element, driving means therefor, a clutch mechanism for operatively connecting and disconnectingthe drawing element to and from thedriving means, means for supplying lu-l bricant to the die, controlling` means therefor, and mechanism for operating the clutch mechanism to disconnect the drawing element from the-driving means and for operating the lubricant controlling means to discontinue the supply' of lubricant to the `die in the event that the wiie breaks.l

6. In a wire drawing machine, a vdie eratingvth-e lubricantcontrolling means to discontinue thesupply of lubricant to the die in the event that the wire breaks.

7. Inj a vwire drawing machine, fa die i `block, adie carriedthereby, va drawing element, driving means therefor,"means for supplying lubricant to the diejinsuch quantity that it drains onto the drawing element, controlling means therefor, and mechanism for operatively disconnecting the drawing element' from the driving means and for operating the lubricant controlling means to discontinue "the supply of lubricant to the die in the event that the wirebreaks.

8. In s a wire drawing machine, adie bloclr, a die carried by the die block, an element for' drawing wire through the die, means for supplying lubricant tothe die, a valve for controlling the'l'ubricant supply, andmechanism for automatically closing the valve to discontinue the supply of lubricant to the die in the event that the wire breaks.

S). In a wire drawing machine, a die block, a die carried thereby, a drawing elef ment, driving means therefor, means for supplying lubricant to thedie, a valve .for controlling the lubricant supply, and mechanism for operatively ydisconnecting the -tliat the wire breaks.

Leonesa drawing element from the driving means and vtor closing the valve to discontinue the supply of lubricant to the diein the event l0. In a jwire drawing machine, a die block, a die carried thereby', a drawing element, driving means therefor, means for Vsupplying lubricantto the die, a valve for, controlling the lubricant supply, and means`v interconnecting the valveand the drawing yelement for4 operatively disconnecting the drawing element from the driving means and for closing the valve to discontinue the`` supply otflubricant in the wire breaks.

ll. In a wire drawing machine, a die blocliadie carried thereby, a drawing element, iving means therefore, a clutch mechanism for operativelyconnecting and disconnecting the drawing element to and event that the from the driving means, means for supplying lubricant to the die, a valve for controlling the lubricant supply,'and mechanism for operatingthe clutch mechanism to disconnectthe drawing element from the driving means and l.for closing the valve to discontinuethe supply of lubricantto the die `in `the event that the wire breaks.

l2.v In a wire drawing machine', a die block,'a die 'carried thereby, a drawing elerin ment, driving'nieans therefor, a clutch mecli- ,v

anism `for operatively connecting and clisconnecting the drawing. element to and from the,driving means, means for supplying 1ubric'ant to the die, a-valve for controlling the` lubricant supply, and means interconnecting. the clutch mechanism and the valve for disconnecting the drawing element from the driving. means and for closing the valve in the event that the wire breaks.

18. In a wire drawing machine, a die block, a die carried thereby,a drawing element, driving means iytherefor, means for supplying lubricant to the die in such quantity thatit-drains onto the drawing element, a. valve for controlling thelubricant supply, and means interconnecting the drawing element and the valve for operatively disconnecting the drawing element from the driving means and for closing the valve to discontinue the supply of lubricantto the die in the event that the wire breaks.

' In witness whereof, I hereunto` subscribe my name this v30th day of June A. D., 1924.

JOHN NILSEN SELVIGE.` 

